— Well, that was really a good meal. I you were a really good cook.
— Thank you.
A. didn’t know
B. don’t know
C. haven’t known
D. hadn’t known
网友回答
(答案→)A. didn’t know
B. don’t know
C. haven’t known
D. hadn’t known
解析：“不知道”是对话之前的动作，表示过去。句意：那顿饭真不错。我以前不知道（现在知道了）你的确是位好厨师。